Photos: Science education center

Science education center

Barbara Haddock Taylor / Baltimore Sun

Mallory McGlannan, 8 of Finksburg and her mom Wendy McGlannan play with wires to make sounds. They are participating in a hands-on exhibit about making sounds in "The Shed" exhibit area at the Maryland Science Center.

Mallory McGlannan, 8 of Finksburg and her mom Wendy McGlannan play with wires to make sounds. They are participating in a hands-on exhibit about making sounds in "The Shed" exhibit area at the Maryland Science Center.

Mallory McGlannan, 8 of Finksburg listens to a can with a string through which she can hear her mom speaking on the other end. They are participating in a hands-on exhibit about making sounds in "The Shed" exhibit area at the Maryland Science Center.

Mallory McGlannan, 8 of Finksburg listens to a can with a string through which she can hear her mom speaking on the other end. They are participating in a hands-on exhibit about making sounds in "The Shed" exhibit area at the Maryland Science Center.